i'm trying to connect my alpine swr1242d 12" subwoofer in a sealed box....but i dont know where to connect the red + wire and the black - wire...on the woofer ..for it has 2 4ohm connections to it....please see above examples...thanksi'm trying to connect my alpine swr1242d 12" subwoofer in a sealed box....but i dont know where to connect the red + wire and the black - wire...on the woofer ..for it has 2 4ohm connections to it....please see above examples...thanks

what are you trying to do and how many are you trying to do it with and is this with amp or without amp need a little more info so we know that were on the same wave lengthwhat are you trying to do and how many are you trying to do it with and is this with amp or without amp need a little more info so we know that were on the same wave length

You have dual 4-ohm coils. 2 coils per speaker.using one speaker, if you take and run the postive from one coil and connect it to the negative of the other coil, then take a wire from your bridge channel on your amp and connect the positive to the the remaining positive on the one coil and connect the negative to the remaining negative on the other coil you will create a 8ohm load on the amp in bridged mode.

now this is the important part. The bigger the load on the amp the greater the wattage output to the speakers. This sucks the wattage out of the amp. Careful not to overload you amp. The setup above is safe for any amp. The following is for 2ohm stable amps only. The lower the ohm value 2, 4, 8 and so on, the greater the load on the amp.

connect the positive of one coil to the positive of the other. connect the negative of one coil to the other negative of the other coil. then take a wire from your bridge channel on your amp and connect the
positive to the the positive on one coil and connect the
negative to the negative on the same coil and you will create a 2ohm load on the amp in bridged mode.

Series = add the two ohm valueparallel= halve the ohm value

you can play with series and parallel together using more than one speaker setup.

Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.

Cut your gain back on the amp. It sounds like they are set too high. Check your install instructions on how to set your gain. If you have a 4 or 5 volt output head unit your will not be at half way. Im running a JL Audio 500 /1 on a skar wwv10 dvc in a ported box. My gain is set about half way & its plenty loud.I have a Alpine 9887 headunit 5 volt output on my RCAsI can take a volt meter & set my speaker output at 45amps & my gain in perfect.

you can connect speakers up any way around ,if its one speaker with 4 connections then these extra 2 terminals are often for a continue through to the next speaker along the line ,.just use a small 9v battery and then connect to two terminals to find a bleep as you touch two of the terminals then you know where to put your wires

I can relate to feeling it in the bones. You got the stuff to do it. You should try the Alpine MP3 head units with bass boost, those are bad to the bone.

Wiring:

Amp to Speaker I like to use the code VC for Voice coil, and AO for Amplifier output. Also + for positive. If I say VC1-, I am referring to the first connector starting left to right on the Alpine Sub. Now I have not seen a Kicker KX1200.1 amplifier. All I see are MRA, MRP, or PDX prefix on the part numbers. So take what I am saying as a guess. You may want to revisit looking at the model of the amp to be sure your giving the right information.

We are going for 2 Ohms. Paralleling the two subs, not the voice coils. The voice coils will be series. Bridge the amp if necessary to get mono channel. only using AO+ and AO- for output.

AO+ to Sub1VC1+

AO+ to Sub2VC1+

Sub1VC1- to Sub1VC2+

Sub2VC1- to Sub2VC2+

AO- to Sub1VC2-

AO- to Sub2VC2-

Set your Crossover to LPF

Adjust the bass gain down to lowest until you test.

Set the Frequencies to midrange between 40 and 100hz

Your box can be ported or not. It depends on the space your have. If you do not have much room, go Enclosed and build a box that the inside space is less than 1 cubic foot. Make sure you give barely enough clearance for the speaker to fit. If you have room, Go with a box and vent it with a 3 inch Vent tube 10 inches long.